From: Matt Foster (matt.foster@blade-software.com)
Date: Fri Mar 12 2004 - 11:33:28 EST
Hi List,
We have received quite a lot of emails from people on this list wanting to
understand more about IDS Informer and so I thought one generic post here would
ensure that the information gets to the right people
IDS Informer typically runs on a Windows laptop with two network cards. The
cards when plugged into a network become virtual PC's and network card one can
send traffic to network card two, when it receives the traffic it then responds
to network card one therefore creating a stateful traffic stream. Any device on
the network monitoring would believe that two separate computers are talking.
IDS Informer has a database of attack files, and tests can be configured using
any source and destination ip addresses and ports, you can use, lists, ranges
and random for each of the fields. Time delays of up to one hour can be added
between each attack as they are ran or between each packet within an attack.
IDS Informer has a number of plug-ins to allow additional capability, there is a
command line interface for scripting tests and a development kit to allow the
conversation of 3rd party capture files into the Informer format. In addition
there is also an evasion plug-in which applies techniques such as fragmentation
and sending packets out of sequence to any traffic passing through it, this can
be used with IDS Informer or can be used in a standalone mode.
Firewall Informer provides very much the same capabilities as IDS Informer
however it transmits network protocol files rather than attack traffic.
All in all the products offer users a self contained testing system running from
a normal Windows laptop with two network cards, you do not need a real target
host to connect and this means that a wide range of testing can be performed
quickly, easily and safely in production environments.
Regards
Matt
_____________________________________
Matt Foster
Blade-Software Inc.
www.blade-software.com
Security Verification Management Solutions
______________________________________
-----Original Message-----
From: Frederic Charpentier [mailto:fcharpentier@xmcopartners.com]
Sent: 11 March 2004 09:30
To: pen-test@securityfocus.com
Subject: Re: IDS Testing
hi.
Some tools are ok to test an IDS, but this is not the best way to do that.
A tool will generate stupids triggers to wake up your IDS, like old CGIs
attacks et low-level tcp/ip tricks.
The best way is to be understand the patterns you set up in your IDS.
No matters that some stupid guys performs ping-attacks or silly cgis
attacks !!
* Try bufferoverflow/shellcodes patterns, and do simple test like :
copy/paste a shellcode into a telnet session.
* For http intrusion detection, detecting IIS nimda attacks is not
You must understand how an atacker will see you perimeter and then try
"Known yourself and yours vulnerabilities, then you can catch the one
An attacker will always try a lot of techniques and attacks before the
The purpose of an IDS is not to detect the maximum of worms attacks,
Frederic.
Security Tester wrote:
> Has anyone ever used a product called IDS Informer made by Blade
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efficient, try to trigger your IDS with XSS/SQL-Injection techniques is
much more efficient:
sample :
http://website/script?req=
to figure out how they will test and try attacks. Then, it's easy to
setup IDS pattern and to test them with well-knonw exploit.
who want to attack your system."
real intrusion. This "noise" (like XSS, large port scans, SQL,
bufferoverflow/shellcode) is easy to detect.
stupid stuffs or the real attack which break into your systems.
The purpose of an IDS is to detect quickly the intruder when he tries or
when he is already in your systems. Then, you can quickly find him/her
and stop the attack before damages.
> Software? I am currently looking at different methods/products that can
> test the functionality and response of production IDS sensors.
>
> I have used stick and snot in the past, but these get old, and quite
> frankly they really don't test the detection capability of the sensor.
> They are however great tools for spamming the sensors and slipping in
> below the radar.
>
> Do any of you have any suggestions as to what might be a good
> technique/tool to test the responses of the IDS systems, apart from
> performing the attacks yourself. I am really looking for some sort of
> way to replay the attack data on the wire, but not actually target any
> machines.
>
> Any help would be greatly appreciated. Thanks in advance.
>
> _________________________________________________________________
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Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off
any course! All of our class sizes are guaranteed to be 10 students or less
to facilitate one-on-one interaction with one of our expert instructors.
Attend a course taught by an expert instructor with years of in-the-field
pen testing experience in our state of the art hacking lab. Master the skills
of an Ethical Hacker to better assess the security of your organization.
Visit us at:
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